Tarantool 1.10.5

Lua

• Exit gracefully when a main script throws an error: notify systemd, log the error. gh-4382
• Enable __pairs and __ipairs metamethods from Lua 5.2. gh-4560 We still conform Lua 5.1 API that is not always compatible with Lua 5.2. The change is only about those metamethods.

Misc

• Add package builds and deployment for the following Linux distros:

• Ubuntu 19.10 Eoan Ermine, gh-4583
• CentOS 8, gh-4543
• Fedora 31, gh-4612

Core

• fiber: make sure the guard page is created; refuse to create a new fiber otherwise. gh-4541. It is possible in case of heavy memory usage, say, when there is no resources to split VMAs.
• Forbid 00000000-0000-0000-0000-000000000000 as the value of box.cfg({<...>}) options: replicaset_uuid and instance_uuid. gh-4282 It did not work as expected: the nil UUID was treated as absence of the value.
• Update cache of universe privileges without reconnect. gh-2763
• net.box: don’t fire the on_connect trigger on schema update. gh-4593 Also don’t fire the on_disconnect trigger if a connection never entered into the active state (e.g. when the first schema fetch is failed).
• func: fix use-after-free on function unload. fce9cf96
• Don’t destroy a session until box.session.on_disconnect(<...>) triggers are finished. gh-4627 This means, for example, that box.session.id() can be safely invoked from the on_disconnect trigger. Before this change box.session.id() returned garbage (usually 0) after yield in the on_disconnect trigger. Note: tarantool/queue module is affected by this problem in some scenarios. It is especially suggested to update Tarantool at least to this release if you’re using this module.
• Handle OOM gracefully during allocating a buffer for binary protocol response. 5c5a4e2d
• func: Fix box.schema.func.drop(<..>) to unload unused modules. gh-4648. Also fix box.schema.func.create(<..>) to avoid loading a module again when another function from the module is loaded.
• Encode Lua number -2^63 as integer in msgpack.encode() and box’s functions. gh-4672

Replication

• Prefer to bootstrap a replica from a fully bootstrapped instance rather than from an instance that is in the process of bootstrapping. gh-4527.

  This change enables the case when two nodes (B, C) are being bootstrapped simultaneously using the one that is already bootstrapped (A), while A is configured to replicate from {B, C} and B – from {A, C}.

• Return immediately from box.cfg{<...>} when an instance is reconfigured with replication_connect_quorum = 0. gh-3760

  This change also fixes the behaviour of reconfiguration with non-zero replication_connect_quorum: box.cfg{<...>} returns immediately regardless of whether connections to upstreams are established.

• Auto reconnect a replica if password is invalid. gh-4550

• Use empty password when a URI in box.cfg{replication = <...>} is like login@host:port. gh-4605.

  This behaviour matches the net.box’s one now. Explicit login:@host:port was necessary before, otherwise a replica displayed the following error:

  Missing mandatory field ‘tuple’ in request

• Fix segfault during replication configuration (box.cfg{replication = <...>} call). gh-4440, gh-4576, gh-4586, gh-4643

• Apply replication settings of box.cfg({<...>}) in the strict order. gh-4433

Lua

• Fix handling of a socket read error in the console client (console.connect(<URI>) or tarantoolctl connect/enter <...>). 1f86e6cc

• Handle the “not enough memory” error gracefully when it is raised from lua_newthread(). gh-4556 There are several cases when a new Lua thread is created:

  • Start executing a Lua function call or an eval request (from a binary protocol, SQL or with box.func.<...>:call()).
  • Create of a new fiber.
  • Start execution of a trigger.
  • Start of encoding into a YAML format (yaml.encode()).

• Fix stack-use-after-scope in json.decode(). gh-4637

• Allow to use cdata<struct ibuf *> (e.g. buffer.IBUF_SHARED) as the argument to msgpack.encode(). 6d38f0c5 Before this change the cdata<struct ibuf> type was allowed, but not the corresponding pointer type.

• A pointer returned by msgpack.decode*(cdata<[char] const *>) functions can be assigned to buffer.rpos now (and the same for msgpackffi), gh-3926.

  All those functions now return cdata<char *> or cdata<const char *> depending of a passed argument. Example of the code that did not work: res, buf.rpos = msgpack.decode(buf.rpos, buf:size()).

• Fix race in fio.mktree() when two tarantool processes create the same directory tree simultaneously. gh-4660 This problem affects tarantool/cartrige, see cartrige#gh-382.

LuaJIT

• Fix the “Data segment size exceeds process limit” error on FreeBSD/x64: do not change resource limits when it is not necessary. gh-4537

• fold: keep type of emitted CONV in sync with its mode. LuaJIT#524 This fixes the following assertion fail:

  asm_conv: Assertion `((IRType)((ir->t).irt & IRT_TYPE)) != st’ failed

Misc

• Fix CLI boolean options handling in tarantoolctl cat <...>, such as --show-system. gh-4076
• Fix segfault (out of bounds access) when a stack unwinding error occurs at backtrace printing. gh-4636 Backtrace is printed on SIGFPE and SIGSEGV signals or when LuaJIT finds itself in the unrecoverable state (lua_atpanic()).
• Clear terminal state on panic. gh-4466